As much as I love meeting interesting Uber drivers, sometimes, I'd be so stressed and/or tired that I'm in no mood to talk to or up for a conversation with the uber driver. However, unaware of this obviously, the driver tries to engage me in a chit-chat which further irritates me but I wouldn't be let it show on my face just to be not rude. It's difficult to tell them that I'm not up for any conversation. So, while booking the ride itself, if there is a checkbox or something which lets the drivers know that the rider doesn't like to converse at this moment, it would be really helpful.